Steam-boiler furnace



(No Model.) 2 Sheets-8heet 1.

H. B. MEEGH.

STEAM BOILER FURNACE.

No. 341,034. Patented May 4-, 1886.

iii 1.

11 PETER Photo-WWI, wufln ton, D, C.

2 Sheets-Sheet 2.

(No Model.)

H. B. MEEGH.

STEAM 120mm FURNACE.

Patented May 4, 1886.

HHWWWWHWWHH N A A A A AUA A A A A A A A A r. Washington, D c.

UNITED STATES PATENT OFFICE.

HARRISON B. MEECH, OF CLEVELAND, OHIO.

STEAM-BOILER FURNACE.

FSPBCIFIGATION forming part of Letters Patent No; 341,034, dated May 4, 1886.

" Application filed March 4, 1886.

To all whom, it may concern Be it known that I, HARRISON B. MEEoH, of Cleveland, in the county of Guyahoga and State of Ohio, have invented certain new and useful Improvements in Steam -Boiler Furnaces; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in attachments for steam-boilers; and it consists in, first, the combination of a tubular or flue boiler with a partition which is placed in the bonnet for the purpose of separating thelower fines from the upper row, a valve for closing the upper rows of dues, and a blower for forcing the products of combustion'a'fter they have passed through the fines back under the gratebars; sccond,the combination of suitable means for forcing the products of combustion back under the grate-bars after they have passed through the lines with tubular grate-bars, which are provided with perforations, through which the steam escapes, so as to supply the products of combustion with hydrogen and oxygen, as will be more fully described hereinafter.

The object of my invention is to keep forcing the waste products of combustion back through the fire for the purpose of consuming instead of allowing them to escape into the air, and to utilize the grate-bars for the generation of steam,so as to supply the waste products of combustion with hydrogen and oxygen, and thus enable them to be readily consumed.

Figure l is a side elevation of a boiler, partly in section, and to which my invention is applied. Fig. 2 is an end view of the same. Figs. 3, 4, and 5 are detail views of the gratebars and the parts connected thereto.

A represents an ordinary tubular boiler, and B the bonnet, which is attached to its outer endin the usual manner. Extending across the inner side of this bonnet is a partition, 0, which cuts off all communication between the outer ends of all of the fines, except the top row, D, from communication with the stack E, which is provided with the valve F. This valve F can be closed at any time desired.

' them.

Serial No. 193,949. (No model-J Pivoted just above the partition 0 in the bonnet B is the valve G, which can be raised upward so as to cover the outer ends of the upper row of flues D, and thus prevent the products of combustion from passing through \Vhen this valve G is opened,thepro ducts of combustion can escape through this row of fines D and the stack E; but when the valve G is closed all passage of the products of combustion through this upper row of fines D is prevented.

Connected with that portion of the bonnet below the partition G is the blower H, and extending from this blower is the pipe I, which leads down through the side wall, so as to discharge the products of combustion which have already passed through the lower fines directly under the grate-bars. This blower is operated from any suitable source, and serves no other purpose than to draw the products of combustion from the fines and force them down under the grate-bars, so as to cause them to pass up through the fire and be consumed.

The grate-bars J'are made hollow, and all or any portion of them may be provided with perforations L, through which the steam which is generated in them escapes under the fire. All of these grate-bars J, or onlya portion of them, may be connected to a watersupply pipe, N, so that each bar, or any portion of them, may be kept filled with water, both to prevent the bars from being so rapidly consumed by the heat, and to generate steam for the purpose of supplying oxygen and hydrogen to the products of combustion, which are being forced up through the fire, and thus enable them to be consumed. gen is both supplied by the steam and by the outside air, which is admitted in suitable quantities under the grate'bars.

I do not restrict myself to any particular construction or arrangement of the grate-bars, for this may be varied at will. The parts may be stationary, or made to rock, or constructed in any way that may be desired. The coal fed into the hopper 0 may either then be discharged directly upon the grate-bars by means of a valve or valves or by means of rotary feeders, which will catch the coal and feed it forward upon the grate-bars.

The boiler is incased in a suitable brick- Oxywork, which surrounds it, as shown, and this brick-work may be provided with a series'of small flues or openings around the top of the boiler, so that the heat can fill these openings,

5 and thus heat be applied to the boiler from every point.

Inside of the boiler is placed a revolving agitator, I which serves to keep the water in constant circnlation,and to break the globules 1: of the water and freely release the steam, and

to prevent the sediment in the water from settling in the form of scale on the bottom of the boiler.

The products of combustion, instead of be 15 ing allowed to escape through thestack of the chimney,in the usual manner, are here forced again and again through the fire and mingled with hydrogen and oxygen, so as to cause a perfect combustion. and thus not only agrcat 20 saving in fuel is effected, but the products of combustion are prevented from escaping into the air, which they not only render foul, but blacken everythingthey come in contact with.

Having thus described my invention, I

25 claim-- 5. In ahorizontal tubular-boiler furnace, the

water-supply pipe N, in combination with the perforated grate-bars J, the valves F and G, the blower H, and pipe I, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

HARRISON B. MEECI-I.

lVitnessesz' O. W. BRoADwELL, W. A. HARRINGTON. 

